Gas-producer.



PATENTED DEC. 12, 1905.

B. GRAUPB.

GAS PRODUCER.

APPLICATION FILED SEPT. 14, 1904.

2 SHEETS-SHBET 1.

IIVYEWTUR m he Awaklvsn B. GRAUPE.

GA$ PRODUCER. APPLICATION FILED SEPT. 14, 1904.

WITN 555 E5 PATBNTED DEC. 12, 1905.

2 SHEETS-SHEET 2.

|NVENTEl F\l burrito sTA-rns PATENT orrron.

GAS-PRODUCER.

Specification of Letters Patent.

Patented Dec. 12, 1905.

Application filed September 14, 1904. gerial No. 224,442.

To all whom it may concern:

Be it known that I, BRUNO GRAUPE, engineer, a sub ect of the German Emperor, re-

siding at 11 Tempelstrasse, Cologne-Deutz,

bottom and intermediate withdrawal of the producer-gases; and it consists in the arrangement in such producers of a vertical or nearly vertical grating, forming part of the producer-walls through which the producer-gase are led off.

With such gas-producers as heretofore constructed in which the discharge of the gases was effected through an annular channel in the producer-walls or merely through openings in the latter the fuel enters the channel or openings and more orless fills them. These portions of the fuel are prevented from taking part in the downward motion of the general body thereof, remain stationary, and give rise to the choking of the passages, as with certain kinds of coal the dust formed during the gasifying process and carried along by the gases is deposited in the interstices of the fuel in the discharge-channel, so that the sectional area of the passage through which the gas escapes becomes moreand more restricted until it is altogether blocked so as to prevent the discharge of gas.

By the employment according to this invention of a vertical grating built into the producer at the point where the gases are discharged the above-mentioned disadvantage is obviated, as with its use no fuel can penetrate into the discharge-channel, and the portion of fuel resting against the grating is subject to the same downward movement as the other part of the charge.

The said improvement can be applied both to gas-producers working with pressure and those working with exhaust. As, however, the arrangement presents special advantages for the last-named class, the applications of the invention hereinafter described and shown on the drawings are based upon the use of exhaust gas-producers open at top. Also in each the grating.

steam. Such evaporating-trough maybe arrangedin various ways.

On the accompanying drawings, Figure l shows'a vertical section of a gas-producer constructed according to the said invention. Fig. 2 shows a vertical section of a modified construction. Fig. 3 shows a section on line was, Fig. 2. Fig. 4 shows another modified construction, and Fig. 5 shows still another construction.

In Fig. 1, a is the gas-producer, which is supplied with the requisite air through the opening Z) at top and the grate 0 at bottom. Between the upper and lower combustion zones there is built into the producer-walls at a suitable level a casting f, having an annular channel d and the gas-discharge bfanch pipe 6. Extending all round the casting are grating-bars g g, so arranged as to. constitute part of the walls. The gases are drawn off through the branch 6, channel d, and grating g. The grating-bars g Q can be built into the casting f in any suitable manner. In the arrangement shown, for example, each bar has a projection at its lower end that is engaged in a corresponding recess in the casting f, while the upper end of the bar bears in the manner shown against an inclined surface on f, and a ring 2' prevents the bars from tilting inward.

Below the grating g is provided the evaporating chamber or trough containing water into which air enters at is, and after passing over the surface of the hot water, so as to take up steam therefrom, it passes through the conduit Z into the ash-pit min order to be drawn up through the incandescent column of fuel. By means of the evaporating trough also the cooling of the lower part of the grating g. is effected.

Fig. 2 shows an arrangement in which the upper part of the grating g is cooled. The casting f in Fig. 1 is advantageously provided with sight-holes h or in the constructions, as shown in Figs. 2 and 3, the evaporatingtrough is provided with closable channels it, through which the grating can be observed. Fig. 3 is a cross-section on line 00 00, Fig. 2, showing the said sight-holes. Fig. 4 shows a vertical section of an arrangement in which the evaporating-trough is so constructed as to cool both the upper and the lower parts of The arrangement can also be such that there are provided two separate troughs or chambers, of which one serves for producing the mixture of air and steam, which is then led through the second one in order to superheat the steam, as shown in Fig. 5. In this figure, n is the chamber or trough for supplying the air passing to the producer with steam, 0 is the chamber or trough for superheating the mixture of air and steam, 10 is a pipe for leading the mixture of air and steam frrzim the first chamber or trough to the secon Any slag adhering either to the grate-bars c or to the grating y can be readily removed by means of a stoking-bar introduced from the top.

Having thus described the nature of my said invention and the best means I know of carrying the same into practical effect, I claim-- l. In a gas-producer with top and bottom combustion zones and intermediate means for the withdrawal of the gas, a substantially vertieal grating composed of vertically-extending grate-bars forming part of the producerwalls, through which the gases are led off, substantially as and for the purpose described.

2. In a gas-producer of the kind herein referred to, a substantially vertical grating forming part of the producer-walls'through which the gases are led 05 in combination with an annular evaporating-chamber encircling the grating and in communication with an air-supply, and means connecting said chamber with the interior of the producer.

3. In a gas-producer with top and bottom combustion zones and intermediate means for the withdrawal of the gas of a substantially vertical grating forming part of the producerwalls, through which the gases are led off, the said producer having an open hand-hole in its top through which air enters the producer and by which access may be had to said grating.

4. In a gas-producer of the 'kind referred to, a substantially vertical grating forming part of the producer-walls through which the gases are led OH in combination with two annular evaporating-chambers, one surrounding the top, and the other surrounding the bottom of said grating, one of said chambers being connected to an air-supply, means for connecting the other of said chambers with the interior of the producer and meansfor connecting said chambers.

In testimony whereof I have signed my name to this specification in presence of two Witnesses.

BRUNO GRAUPE.

Witnesses:

WILLIAM KUEPPERS, Gon. SoHoLz. 

